U.S. Navy

The latest North Korean missile tests come at time when the U.S. defensive shield is weakened, missile-defense analysts say, by this summer’s loss of a pair of warships specially outfitted for ballistic-missile defense.

The U.S. Navy's newest communications satellite has experienced an undisclosed “anomaly” following its June 24 launch, causing the Navy to suspend the transfer of the satellite to geosynchronous orbit.

United Launch Alliance announced April 8 that it has indefinitely delayed the next launch of its Atlas 5 rocket after the most recent launch of a Cygnus cargo spacecraft included a premature shutdown of the first stage engine.

A consortium of U.S. international partners, led by Canada, could reach an agreement early next year to build a sixth Mobile User Objective System narrowband communications satellite, a top Lockheed Martin executive said March 15.

With images like these, it's no wonder California — not to mention the Twittersphere — freaked out Saturday evening when an unannounced test of a submarine-launched Trident missile lit up the evening sky.